Two audiences, one book, and the combination is deliberate.
For the Ordinary Muslim
The first purpose is practical: to gather the information that is indispensable in day-to-day life. Not the material a specialist needs, but the rulings and principles a person meets in an ordinary week and is expected to know.
Most Muslims assemble this knowledge in fragments — a ruling heard in a khutbah, a practice learned from a parent, an answer given by a friend who sounded confident. Having it in one place, sourced, removes a good deal of quiet uncertainty.
For the Student and the Da'ee
The second purpose is a reminder for students of knowledge and for those calling others to Allah, on the important issues of the Shari'ah.
That framing is worth noticing. A person who teaches or gives da'wah works from what he learned years ago, and the foundational material is precisely what he stops reviewing. He answers questions from memory, and the memory drifts. A book that puts the essentials back in front of him is more useful than another advanced text.
Who It Is For
Muslims wanting a single reliable reference on the essentials rather than several partial ones. Students of knowledge reviewing the ground beneath what they are building. Da'wah workers and teachers. New Muslims past the introductory stage who want the fuller picture.
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